import {
  Card,
  Breadcrumb,
  Form,
  Button,
  Radio,
  Input,
  Upload,
  Space,
  Select,
  message
} from 'antd'
import { PlusOutlined } from '@ant-design/icons'
import { Link, useSearchParams } from 'react-router-dom'
import './index.scss'
import ReactQuill from 'react-quill'
import 'react-quill/dist/quill.snow.css'
import { useChannels } from "@/hooks/useChannel.js"
import { publishArticle,getArticleInfo,updArticleInfo} from "@/apis/article.js"
import { useEffect, useRef, useState } from 'react'

const { Option } = Select


const Publish = () => {
  //通过自定义hooks获取频道数据
  const { channels } = useChannels()
  // 发布文章
  const onFinish = async (formValue) => {
    //判断封面图类型是否与上传的图片数量一致
    if(imageType!==imageList.length) return message.warning("图片类型与上传图片数不一致！")
    
    const { channel_id, content, title } = formValue
    const params = {
      channel_id,
      content,
      title,
      type: 1,
      cover: {
        type: imageType,
        images: imageList.map(item =>{
          if(item.response){
            return item.response.data.url
          }else{
            return item.url
          }
        })
      }
    }
    if (articleId) {//编辑文章
      await updArticleInfo({...params,id:articleId})
      message.success('文章编辑成功')
    }else{//发布文章
      await publishArticle(params)
      message.success('文章发布成功')
    }
  }
  // 控制图片Type
  const [imageType, setImageType] = useState(0)
  //改变封面图类型
  function onTypeChange(e) {
    const type = e.target.value
    setImageType(type)
    if (type === 1) {
      // 单图，截取第一张展示
      const imgList = cacheImageList.current[0] ? [cacheImageList.current[0]] : []
      setImageList(imgList)
    } else if (type === 3) {
      // 三图，取所有图片展示
      setImageList(cacheImageList.current)
    }
  }
  // 缓存的图片列表
  const cacheImageList = useRef([])
  // 上传图片的图片列表
  const [imageList, setImageList] = useState([])
  const onUploadChange = (info) => {
    setImageList(info.fileList)
    cacheImageList.current = info.fileList
  }

  //获取传递过来的路径参数
  const [params]=useSearchParams()
  //获取的文章id
  const articleId = params.get('id')
  //获取from表单实例
  const [form]= Form.useForm()
  //获取文章详情数据
  async function getArtInfo(){
     const res=await getArticleInfo(articleId)
     console.log(res);
     const data=res.data
     form.setFieldsValue({
      ...data,
      type: data.cover.type
     })
     //设置回填的图片类型
     setImageType(data.cover.type)
     //设置回填的图片列表
     setImageList(data.cover.images.map(url=>({url})))
     //设置缓存图片列表
     cacheImageList.current=data.cover.images.map(url=>({url}))
  }
  //回显数据
  useEffect(()=>{
    articleId && getArtInfo()
  },[articleId,form])
  return (
    <div className="publish">
      <Card
        title={
          <Breadcrumb items={[
            { title: <Link to={'/'}>首页</Link> },
            { title: articleId?'编辑文章':'发布文章' },
          ]}
          />
        }
      >
        <Form
          labelCol={{ span: 4 }}
          wrapperCol={{ span: 16 }}
          initialValues={{ type: 0 }}
          onFinish={onFinish}
          form={form}
        >
          <Form.Item
            label="标题"
            name="title"
            rules={[{ required: true, message: '请输入文章标题' }]}
          >
            <Input placeholder="请输入文章标题" style={{ width: 400 }} />
          </Form.Item>
          <Form.Item
            label="频道"
            name="channel_id"
            rules={[{ required: true, message: '请选择文章频道' }]}
          >
            <Select placeholder="请选择文章频道" style={{ width: 400 }}>
              {channels.map(item => <Option key={item.id} value={item.id}>{item.name}</Option>)}
            </Select>
          </Form.Item>
          {/* 封面 */}
          <Form.Item label="封面">
            <Form.Item name="type">
              <Radio.Group onChange={onTypeChange}>
                <Radio value={1}>单图</Radio>
                <Radio value={3}>三图</Radio>
                <Radio value={0}>无图</Radio>
              </Radio.Group>
            </Form.Item>
            {imageType > 0 && <Upload
              name="image"
              listType="picture-card"
              showUploadList
              action={'http://geek.itheima.net/v1_0/upload'}
              onChange={onUploadChange}
              maxCount={imageType}
              multiple={imageType > 1}
              fileList={imageList}
            >
              <div style={{ marginTop: 8 }}>
                <PlusOutlined />
              </div>
            </Upload>}
          </Form.Item>
          <Form.Item
            label="内容"
            name="content"
            rules={[{ required: true, message: '请输入文章内容' }]}
          >
            {/* 富文本编辑框 */}
            <ReactQuill
              className="publish-quill"
              theme="snow"
              placeholder="请输入文章内容"
            />
          </Form.Item>

          <Form.Item wrapperCol={{ offset: 4 }}>
            <Space>
              <Button size="large" type="primary" htmlType="submit">
                {articleId?'编辑文章':'发布文章'}
              </Button>
            </Space>
          </Form.Item>
        </Form>
      </Card>
    </div>
  )
}

export default Publish